Mazda RX-7 Spirit R Type A

The third generation of the RX-7, FD (with FD3S for Japan and JM1FD for the USA VIN), featured an updated body design. The 13B-REW was the first-ever mass-produced sequential twin-turbocharger system to export from Japan, boosting power to 255 PS (188 kW; 252 hp) in 1993 and finally 280 PS (206 kW; 276 hp) by the time production ended in Japan in 2002.

The sequential twin turbocharged system was a very complex piece of engineering, developed with the aid of Hitachi and previously used on the domestic Cosmo series (JC Cosmo=90–95). The system was composed of two turbochargers, one to provide boost at low RPM. The second unit was on standby until the upper half of the rpm range during full throttle acceleration. The first turbocharger provided 10 psi (0.7 bar) of boost from 1800 rpm, and the second turbocharger was activated at 4000 rpm and also provided 10 psi (0.7 bar). The changeover process occurred at 4500 rpm, 8 psi (0.6 bar), was smooth, and provided linear acceleration and a wide torque curve throughout the entire rev range.

There are three models of "Spirit R": the "Type A", "Type B", and "Type C". The "Type A" is a two-seater with a 5-speed manual transmission. It features lightweight red trim Recaro front seats as seen in the earlier RZ models. The "Type B" has a 2+2 seat configuration and also sports a five-speed manual transmission. The "Type C" is also a 2+2, but has a four-speed automatic transmission. Of the 1500 Spirit R's made, over 1000 were Type A's. An exclusive Spirit R paint color, Titanium Grey, adorned over 700 of the 1500 cars sold.

Source: Wikipedia, 2014

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